Where does IHeader live in the IronXL API?

IHeader is an interface in the IronXL.Layout namespace, shipped in IronXL.dll. It extends IHeaderFooter and is returned by the WorkSheet.Header property.

What is the difference between IHeader and IFooter in IronXL?

Both extend IHeaderFooter and share the same inherited Left, Center, and Right text properties with no added members. WorkSheet.Header returns an IHeader for the top of the page, and WorkSheet.Footer returns an IFooter for the bottom; the type only indicates which band is being edited.

Interface IHeader

Interface for worksheet header

Inherited Members

IHeaderFooter.Left

IHeaderFooter.Center

IHeaderFooter.Right

Namespace: IronXL.Layout

Assembly: IronXL.dll

Syntax

public interface IHeader : IHeaderFooter

IHeader is the running header a developer edits to print text across the top of every page of a worksheet, such as a report title, a date, or a logo caption. It is what a worksheet returns specifically for the top-of-page band, distinct from the footer that prints along the bottom. A developer assigns text to its three positioned zones so a printed or exported spreadsheet carries consistent page furniture without manual editing in Excel.

A developer obtains an IHeader from WorkSheet.Header; there is no constructor, and the header belongs to its worksheet. IHeader extends IHeaderFooter and declares no members of its own, so its entire editable surface is inherited: the Left, Center, and Right properties, each a readable and writable string, hold the text for the left, center, and right zones of the header band. The matching IFooter, returned by WorkSheet.Footer, shares the same inherited surface; the two types differ only in which page band they address. Set the zones a layout needs and save the workbook to apply them to print output.

IHeader header = sheet.Header;
header.Center = "Quarterly Report";
header.Left = "Iron Software";

The Excel print setup example configures a sheet for printing, where header text prints on each page, and the IHeaderFooter reference documents the inherited Left, Center, and Right zones.

Inherited members

Left

Center

Right